:root {
  --bg: #f7f9fb;
  --bg-alt: #eef3f7;
  --text: #0c1b2a;
  --muted: #5a6a7a;
  --accent: #1aa6a1;
  --accent-dark: #11827e;
  --card: #ffffff;
  --border: #d7e1ea;
  --shadow: 0 10px 30px rgba(12, 27, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 20% 10%, #ffffff 0%, var(--bg) 55%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 249, 251, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav-links a {
  margin-left: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text);
}

.hero {
  padding: 72px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.75rem;
  color: var(--muted);
}

h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  margin: 12px 0 8px;
}

.tagline {
  font-size: 1.2rem;
  color: var(--text);
}

.subtext {
  color: var(--muted);
  margin-top: 8px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 16px;
}

.btn {
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn.primary {
  background: var(--accent);
  color: white;
  box-shadow: var(--shadow);
}

.btn.primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn.ghost {
  border-color: var(--border);
  color: var(--text);
}

.btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chips span {
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
  background: white;
}

.hero-card {
  display: grid;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.card.accent {
  border-color: #b9ecea;
  background: #f2fffe;
}

.card-title {
  font-weight: 700;
  margin-bottom: 10px;
}

.section {
  padding: 56px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section-title h2 {
  margin: 0 0 6px;
  font-size: 2rem;
}

.section-title p {
  color: var(--muted);
  margin: 0;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.panel {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.callout {
  margin-top: 20px;
  padding: 14px 16px;
  border-left: 4px solid var(--accent);
  background: #f2fffe;
  border-radius: 8px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.shot-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
}

.shot-card img {
  border-radius: 10px;
  border: 1px solid var(--border);
  margin-bottom: 12px;
}

.diagram {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  font-weight: 600;
  color: var(--accent-dark);
}

.diagram .arrow {
  color: var(--muted);
  font-weight: 700;
}

.bullets {
  margin: 18px 0 0;
  color: var(--muted);
}

.code-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

pre {
  margin: 10px 0 0;
  padding: 14px 16px;
  background: #0c1b2a;
  color: #e6f3ff;
  border-radius: 12px;
  overflow-x: auto;
}

.note {
  color: var(--muted);
  margin-top: 12px;
}

.site-footer {
  padding: 30px 0 40px;
  border-top: 1px solid var(--border);
  background: #f4f7fb;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-title {
  font-weight: 700;
  margin-bottom: 6px;
}

.footer-links a {
  display: inline-block;
  margin-right: 16px;
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--text);
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .cards,
  .two-col,
  .code-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}